@php
    echo '<?xml version="1.0" encoding="UTF-8"?>';
@endphp
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
    @if($area)
        @foreach($area as $v)
            <url>
                <loc>{{ url('/area/'.$v->id) }}/</loc>
                <lastmod>{{ $v->updated_at->tz('UTC')->toAtomString() }}</lastmod>
                <changefreq>weekly</changefreq>
                <priority>0.6</priority>
            </url>
        @endforeach
    @endif
    @if($column_site)
        @foreach($column_site as $v)
            <url>
                <loc>{{ url('site/'.$v->id) }}/</loc>
                <lastmod>{{ $v->updated_at->tz('UTC')->toAtomString() }}</lastmod>
                <changefreq>weekly</changefreq>
                <priority>0.6</priority>
            </url>
        @endforeach
    @endif
    @if($column_art)
        @foreach($column_art as $v)
            <url>
                <loc>{{ url('article/'.$v->id) }}/</loc>
                <lastmod>{{ $v->updated_at->tz('UTC')->toAtomString() }}</lastmod>
                <changefreq>weekly</changefreq>
                <priority>0.6</priority>
            </url>
        @endforeach
    @endif

</urlset>